What if a copper coin stands?

The standing of copper coins is not invalid divination, but an external reaction. The main principle of external application is "one thing, one Tai Chi". When you are divining, standing copper coins can be regarded as Artest pool, which means a positive side, and the positive and negative sides are just the balance of Yin and Yang. Therefore, there is a difference between standing copper coins and pouring copper coins in divination. This difference can be regarded as the communication between external application and internal divination, which will affect the result of divination to some extent.

Please note that these explanations are for reference only, the result of divination is not absolute, and the final decision needs to be combined with the actual situation and your own judgment.